Reed for looms.



No. 736,670, PATENTED AUG. 18, 1903. G. DE ZORAWSKI.

REED FOR LOOMS.

APPLICATION FILED SEPT.'26. 1902.

N0 MODEL. 3 SHEETS-SHEET 1.

No. 736,670. PATENTED AUG. 18, 1903. r G. DB ZORAWSKI.

REED FOR LOOMS.

APPLIGATION rxnnn 83M. 2a. 1902.

no MODEL. 3 sums-sum 2 N0 MODEL.

PATENTED AUG. 18, 1903. G. DE ZORAWSKI.

REED FOR LOOMS.

APPLICATION II-L-ED SEPT. 26. 1902.

3 SHEETS-SHEET 3.

NITE o STATES Patented August 18, 1903.

GUSTAV DE ZORAWSKI, OF OZORKOW, RUSSIA.

REED FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 736,670, dated August18, 1903. Application filed September 26,1902.' Serial No. 124,984. (Nomodeh) To all whom, it may concern:

Be it known that I, GUsTAv DE ZoRAwsKI, a subject of the Czar of Russia,residing at Ozorkow, Russian Poland, Russia, have invented certain newand useful Improvements in Reeds for Looms; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

The present invention relates to looms genorally; and its object is tosubstitute a combined fast and loose reed device for the controllingmechanism hitherto employed, which latter in consequence of theircomplicated nature are a cause of many interruptions in working,break-ages, and repairs and also form a source of danger to theoperators, often injuring the fingers of the same.

The invention consists in the features and combination and arrangementof parts hereinafter described, and particularly pointed out in theclaims.

In order to render the present specification easily intelligible,reference is had to the accompanying drawings, in which similar numeralsof reference denote similar parts throughout the several views.

Figure 1 is a side elevation of the lay opened to show the couplingdevice. Fig. 2 is a perspective view of the same, showing the operatingmechanism. Fig. 3 is a cross-section through the lay; and Figs. 4 to Srepresent a series of cross-sectional elevations of the lay and itsadjoining parts, showing the positions of the latter at different pointsof the stroke of the lay, as hereinafter set forth.

As will be seen from Figs. 1 to 3, the top of the lay is made in twoparts according to the present in vention, the said parts being hingedtogether and comprising the partly-recessed fixed part 1 and the movablepart or cover 2, hinged together at 3. A shaft 5 is mounted in the part1 in bearings 4 and capable of rotation therein, the said shaft beingprovided at certain intervals with hooks 6. The shaft 5 is rocked by thedriving-crank 7 for the lay. With this object in view an arm 8 isattached at a suitable point to the crank-shaft 7 and linked, by meansof a member 9 or in any other suitable manner, to the shaft 5, so as torock the same. The movable part 2 of the lay is provided with a set ofeyes or loops 10, corresponding in position with the hooks 6 and adaptedto receive the latter when the two parts of the lay are closed one onthe other, as shown in Fig. 3. If now the crank and with it theabove-described coupling is set in motion, the movable part 2 of thelay, as previously mentioned, will be looked to the fixedpart of thesame by the hooks 6 during the beating-11 p operation and the whole ofthe return stroke of the lay and will be unlocked during the first partof the forward movement of the lay, as will now be more particularlyexplained with reference to Figs. 4 to 8.

Fig. 4 illustrates the position of the parts during the beating up ofthe weft by means of the reeds 14. At this pointthe crank is in theposition I and the lay is in a substantially vertical position. Thecoupling device is locked by the lever mechanism 8 and 9-4;. 6., thehooks 6 of the shaft 5 are in engagement with the eyes 10 of the movablepart of the lay, so that parts 1 and 2 are locked together. The lowerbar of the reeds 14 is retained in the usual manner, while the upper baris held in position between the parts 1 and 2 of the lay, so that atthis period of the stroke the whole device operates as with a fixedreed-frame and possesses all the advantages accruin g'from thisarrangement over that with loose or detachable reeds. In this positionof the parts it is of course assumed that the shuttle has passed throughthe shed without hindrance or stoppage. As the return movement of thelay commences the crank, as shown in Fig. 5, takes the position II, andthe coupling devicei. e., the shaft 5 with the hooks 6-will be moved bythe lever mechanism 8 and 9 to force the hooks 6 still farther throughthe eyes 10. At this moment the shuttle commences its movement throughthe shed. In this position, as in Fig. 4, the reed-frame is rigidly heldin position. As soon, however, as thecrank 7 reaches the position III(shownin Fig. 6) the shaft 5 will begin to be rocked backwardly and willslowly detach the hooks 6 from the eyes 10. If now the shuttle sticks inthe shed, the further movement of the crank into the position IV (shownin Fig. 7) will cause pressure to be exercised on the reeds 14 by thesaid shuttle, which pressure will be immediately transmitted to therearward movable part 2 of the lay, the lower edge of which retains theupper reed-bar in position. As meanwhile the hooks 6 have been unlockedfrom the eyes 10, so the further or continued movement of the parts willhave the efiect that the upper bar of the reeds 14: will spring out ofthe lay, as will be readily understood on reference to Fig. 8. In thiscase the device operates after the manner of a loom with loose reeds,the latter being capable of being thrown out with extraordinaryfacility, and thus acting as a very sensitive weft-fork mechanism toeffectually prevent a breakage of the warp-threads under allcircumstances. If the shuttle has passed properly through the shedwithout hindrance, the crank passes on to the position I of Fig. 4 withthe efiect previously described, and the whole series of operations willbe repeated.

From the above description it will be readily understood that thepresent combined fast and loose reed device forms asimple and efiectivesubstitute for the complicated and dangerous mechanisms hithertoemployed for the purpose, and the result in the present case is due inno small measure to the derivation of the power for operating thecoupling device from the crank of the lay-operating mechanism.

In order to enable the upper bar of the reeds to fit properly in theupper part of the lay, the fixed part 1 of the latter is provided with agroove 11, as may be seen at Fig. 3, the bar being held in the same bythe lower edge of the movable part 2. The lower bar of the reeds ismounted in the manner customary in fixed reed devices. p

In order to prevent the movable part from opening unintentionally on themovement of the lay, and thus possibly preventing the proper engagementof the hooks 6 with the eyes 10 when the parts are not looked, a spring13 is provided, having one end attached to a hook 12 and the otherconnected to the foot part of the lay. Thus if the shuttle sticks itwill only have to overcome the slight tension of this spring on theforward movement of the lay in order to throw open the movable part 2 ofthe lay and eject the upper bar of the reeds. I A stopping mechanism forthe lay of any suitable construction may be employed simultaneously withthe above-described fast and loose reed device in order tostop the laywhen the shuttle sticks.

As will be seen from the above description, the durability of the deviceis almost unlimited and the construction itself of the mostsimplenature. The durability depends entirely on the nature of the materialsemployed, since the device is subjected to practically no wear and tear.

It is obvious that the construction of the coupling, as also theparticular driving mechanism from the lay-crank, may be varied in anumber of ways without departing from the spirit of the presentinvention.

I claim as my invention- 1. In a 160m the combination of a lay having arigid and a movable part adapted to hold the upper reed-bar between thesame and means actuated from the lay-operating crank to periodicallylock said parts together and unlock the same during the stroke of thelaysubstantially as described.

2. In a loom the combination of a lay having a rigid and a movable partadapted to hold the upper reed-bar between the same and means actuatedfrom the lay-operating crank to periodically lock said parts togetherduring the beating-up operation and the return stroke of the laysubstantially as described.

3. In a loom the combination of a lay having a rigid and a movable partadapted to hold the upper reed-bar between the same and means actuatedfrom the lay-operating crank to periodically lock said parts togetherand to unlock the same at the beginning of the lay-stroke whiletheshuttle is traversing the shed substantially as described.

4. In a loom, the combination of a lay having a fixed upper box, a coverhinged to the upper part of the same, a coupling within the said box tocouple the cover to the same and means operated by the lay-operatingcrank to periodically lock and unlock said coupling during the stroke ofthe lay substantially as described.

5. In a loom the combination of alay having a fixed upper box and acover hinged at the top to the rear of the same, means for supportingthe upper reed-bar between said cover and box, a rotary shaft having aseries of hooks thereon mounted within said box, and a series of eyes onsaid cover in which said hooks engage, and means actuated by thedriving-crank of the lay to rock said shaft and lock and unlock saidcouplinghooks periodically during the stroke of the lay substantially asdescribed.

6. In a loom the combination of a lay having a fixed upper box and acover hinged at the top to the rear of the same, means for supportingthe upper reed-bar between said cover and box, a rotary shaft having aseries of hooks thereon mounted within said box, and a series of eyes onsaid cover in which said hooks engage, and means actuated by thedriving-crank of the lay to rock said shaft and lock and unlock saidcouplinghooks periodically during the stroke of the lay and a spring tonormally hold the cover against the box substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

GUSTAV DE ZORAWSKI.

